Sign.



SIGN.

APPLlCATION FILED DEC. I4.- 1915.

Patented 991191917.

Hmm @www @uw INI/ENTOR A TO'RNEYS UNITED sTATEs PATENT oEETcE.

JOHN EREDERIK KAISER, OE BARTLEsvILLE, OKLAHOMA.

SIGN.

To all whom t may concern:

Be it known that I, JOHN KA1sEn,`a

. citizen ofthe yUnited States, and a resident of Bartlesville, in the-county of Washington and State of Oklahoma, have invented an lImprovement in Signs, of which the other at regulated intervals, and so attract ticularity the attention of prospective customers.

A further object of my invention is to produce a sign provided with two lamps ofl diferentfcolors so selected and in such relation to a refiector of peculiar construction,

that when both lamps are burning brightly,

the rays of light from one will be blotted out by' the light from the other, and when the latter lamp is dimmed, the sign will be` of the color Of ,the rst lamp.

A, still further object of my Ainvention is to provide automatic electro-therrnally conf trolled means for so dimming one of the lamps at regulated intervals.

Y With such objects in view, and Others which willwappear as the description proceeds, the invention comprises various novel features of construction, and arrangement of parts. which will be set forth withI par-v in the following description and claims appended hereto. n

In the accompanyingy drawings, which illustrate one embodiment of the invention, and wherein like reference charactersin'dicate'like parts, Figure 1 is a perspective viewof my improved sign in position in a show window. Fig. 2 is a vertical side sectional view of the device.. Fig. 3 is a horizontal section on the line3-3 kof Fig. 2. Fig. 4 is l a part elevation .of my improved signwith the display card holder removed.

In the drawings, the lamp box, which is formed ofsheet metal highlypolished on its inner surface to form a reflector, comprises a rectangular rearl wall 1, and outwardly Haring sides 2.l A rectangular rim sides 2 andl forms a frame for the 3, suitably stilened at its front edge'as shown at 4, is riveted .to the' front of the ireception of the display card holder. The lamp box is supported by two short front legs v5, secured to the lower side of the rim 3,

and'a'loiiger-rear leg Gisecured to the'lower l 4Speciication of Letters atent.'

. Application iled December 14, 1915. Serial No.

side of the lamp box. The legs are of a length adapted to support the lamp box in a slightly rearwardly inclined position, so

` that the vs ign may be readily seen by a passerby.

The display card holder cpmprises a rec- .tangular frame 7, having a rearwardly projecting Hange 8 which exactly fits withiny the front opening of the lamp box. A glass front 9 is held in this frame by a beading 1() secured to the innerside of the flange 8. The-sign iwhich itis desired to display is formed upon a sheet of semi-transparent -paper 12 which fits within the beading 10 lbehind the glass. This paper sign is removably held in position by a spring metal rod 11, which fits in the angle formed by the glass and the 'beading 10, and clamps the paper sign in position.A By this construcf tion it will be seen that the holder for the display card may be quickly removed from the lamp box, and the displayicard easily A withdrawn and another inserted in itsplace -by removing the clamping rod 11.

Standardelectric light sockets 13 and 14, aresecured one above the other, to the rear wall 1 of the lamp box. Electric light bulbs of different colors are held in these sockets, the colors selected being such, that when both lamps are burning brightly the light rays from the lower blb 15 will blot out the colored rays from the upper bulb 16.

In the embodiment n of my invention shown in .the drawings, I have used a white lower bulb 15, and an upper bulb 16, one half of Ywhich is'colored yellow and the '.other half purple with the edges of the f two colors blended' together, but'it is ob Patented Jan. 9, 1,917.

for example, could be used. A light shieldv 17, preferably of metai, is placed over the front'of the upper bulb to prevent spotsl i of light from the same showing vthrough the semi-trana-:parent "sign. An electrical appllance 18 of ordinary construction, comprismg a controlled means for alternatingly shunting .a current through therheostat and around the same, issecured to the inner side of the lamp box. :This deviceis placed inthe cirnheostat and automatic thermally cuit of the lower lamp to automatically increase and decrease the current thereto at regular intervals, and so Hash the lamp 15 '.'from a bright to-f'a dim light, whilethe current supplied to the upper lamp remains i constant, and so maintains a bright light in the lamp 16. k

Wires 20 and 21 secured to a connecting plug 22, are led into the lamp box through an opening 19 formed in the lower side thereof. The wire 21 leads to a binding post of the lamp 15 and thence to al post of the lamp 16. The wire 20 leads from the other A"\binding post of lamp 16 to the binding post apparent. A sign with the )desired advertisement painted thereon is placed in the holder which ts in the front of the lamp and the plug 22 is connected to a source of electrical current. The circuit through the upper lamp is uninterrupted so ity will'burn show-ing a steady bright purple and yellow light. The white lamp will first be dimmed,

the current thereto being shunted through the rheostat, and .the sign will, therefore, diffuse a blended yellow and purple glow.

y When the current to the white lamp is'auto`4 matically shunted around the rheostat, the lamp will burn brightly, blotting out the blended rays from the upper lamp' and diffusing' a whitelight through the sign.

These alternations in color effect will continue as long as the sign is supplied with current. The interval of time between ashesmay be regulated by the set screw 26.

Itw1l1 thus be seen that I have provided a sign of durable construction, adapted to use 'interchangeable inexpensive display cards,

which will automatically flash from one color to another at regulated intervals.

I claim:

1. Inv a device 4of the character specified, a lamp box, a sign plate at the front of the said lamp box, lamps of different color.

wi'thin the said lamp box, reflectors for the said lamps, means for changing one of the said lamps from a dim to a bright light,the

other lamp being adapted to burn uniformly during operation, -the said` lamps being ofv 'having a rearwardly projecting flange adapted t0 fit within the open end of the lamp box and support a transparent plate,

a beading secured to the said flange and adapted to hold the said plate in position, a display sign formed of semi-transparent material in rear of the said plate and within the said beading, means for holding ythe semi-transparent sign in position, and means carried within the lamp box for' illuminating the said sign.

- V3. In a sign of the character specified, the combination with electric lamps of different color, of an electric circuitthrough the said lamps, means for changing'one of the 'said lamps from a dim to a bright light, the other lamp burning uniformly during operation, the said changing lamp being of such a color as to obliterate when burning brightly the effect of the light from the other lamp.

4. A sign comprising a semi-transparent sign plate, a lamp in rear thereof burning uniformly during operation, a second lamp coperating therewith and adapted to obliterate the effect of the light from the first lamp through the said sign plate, and

a light shield so positionedfas to interrupt part of the rays of light fromthe first-mentioned lamp through the said sign plate.

5. In a device of the character speciiied, a sign plate, a lamp in rear thereof burning uniformly during operation, a second lampd coperating therewith and adapted when burning brightly to obliteratethe effect of the light from the first-mentioned lamp through the said sign plate, land means for gchanging the second lamp from a dim to a bright light. v

JOHN FREDERICK KAISER. Witnesses:

CELLA' GRAY, CAS. A. KEENER. 

